[oclug] Dumb question about MP3

Stephen Gregory oclug at kernelpanic.ca
Sat Aug 19 17:04:26 EDT 2006


On Sat, Aug 19, 2006 at 04:24:33PM -0400, farrell wrote:

> 	I have been ripping my CDs to FLAC,

A decoded flac is bit for bit identical to the orginal wav file ripped
from the cd. Not waveform identical. Bit for bit identical. If you
don't believe me test it.

$ cdparanoia 1 foo.wav
<snip>

$ flac foo.wav
<snip>
options: -P 4096 -b 4608 -m -l 8 -q 0 -r 3,3
foo.wav: wrote 36873547 bytes, ratio=0.694

$ flac -d -o bar.wav foo.flac
<snip>

$ md5sum foo.wav bar.wav
f46734c640ba0006e7d4fc6dc75dbf3c  foo.wav
f46734c640ba0006e7d4fc6dc75dbf3c  bar.wav

You can't get more identical then that.

(bonus points to whoever can guess which CD I used. Here is a hint:
The artist is Canadian.)

-- 
sg






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